Home / 21,490,188.40-32,235,282.60-20,229,439.60

Finding the Fourth Proportional to 21,490,188.40, 32,235,282.60 and 20,229,439.60

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Solution

The fourth proportional to 21,490,188.40, 32,235,282.60 and 20,229,439.60 is: 30,344,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490,188.40 : 32,235,282.60 = 20,229,439.60 : x
  2. Step 2: Convert to fraction form
    21,490,188.40/32,235,282.60 = 20,229,439.60/x
  3. Step 3: Cross multiply
    21,490,188.40x = 32,235,282.60 × 20,229,439.60
  4. Step 4: Simplify right side
    21,490,188.40x = 652,101,702,345,631
  5. Step 5: Solve for x
    x = 652,101,702,345,631/21,490,188.40
  6. Step 6: Final answer
    x = 30,344,159.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.